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Clean up NvAPI I2C code and allow multiple GPUs

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master
Adam Honse 6 years ago
parent 5e5ac81f53
commit b480bbd666
6 changed files with 67 additions and 21 deletions
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33
OpenRGB.cpp
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@ -88,6 +88,33 @@ void DetectNuvotonI2CBusses()
} /* DetectNuvotonI2CBusses() */
/******************************************************************************************\
* *
* DetectNvAPII2CBusses (Windows) *
* *
* Detects available NVidia NvAPI I2C adapters and enumerates *
* i2c_smbus_interface objects for them. Only enumerates the first bus for each GPU *
* *
\******************************************************************************************/
void DetectNvAPII2CBusses()
{
static NV_PHYSICAL_GPU_HANDLE gpu_handles[64];
static NV_S32 gpu_count = 0;
NV_STATUS initialize = NvAPI_Initialize();
NvAPI_EnumPhysicalGPUs(gpu_handles, &gpu_count);
for(NV_S32 gpu_idx = 0; gpu_idx < gpu_count; gpu_idx++)
{
i2c_smbus_nvapi * nvapi_bus = new i2c_smbus_nvapi(gpu_handles[gpu_idx]);
sprintf(nvapi_bus->device_name, "NVidia NvAPI I2C on GPU %d", gpu_idx);
busses.push_back(nvapi_bus);
}
} /* DetectNvAPII2CBusses() */
/******************************************************************************************\
* *
@ -171,9 +198,9 @@ void DetectI2CBusses()
// Detect Nuvoton Super IO SMBus adapters
DetectNuvotonI2CBusses();
i2c_smbus_nvapi * nvapi_bus = new i2c_smbus_nvapi();
strcpy(nvapi_bus->device_name, "NVAPI Bus");
busses.push_back(nvapi_bus);
// Detect NVidia NvAPI I2C adapters
DetectNvAPII2CBusses();
} /* DetectI2CBusses() */
#else /* WIN32 */

4
OpenRGB.pro
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@ -209,11 +209,11 @@ win32:INCLUDEPATH += \
wmi/ \
win32:SOURCES += \
dependencies/NVFC/nvapi.cpp \
i2c_smbus/i2c_smbus_i801.cpp \
i2c_smbus/i2c_smbus_nct6775.cpp \
i2c_smbus/i2c_smbus_nvapi.cpp \
i2c_smbus/i2c_smbus_piix4.cpp \
i2c_smbus/nvapi.cpp \
serial_port/find_usb_serial_port_win.cpp \
wmi/wmi.cpp \
RGBController/OpenRazerWindowsDetect.cpp \
@ -221,8 +221,10 @@ win32:SOURCES += \
win32:HEADERS += \
dependencies/inpout32_1501/Win32/inpout32.h \
dependencies/NVFC/nvapi.h \
i2c_smbus/i2c_smbus_i801.h \
i2c_smbus/i2c_smbus_nct6775.h \
i2c_smbus/i2c_smbus_nvapi.h \
i2c_smbus/i2c_smbus_piix4.h \
wmi/wmi.h \
RGBController/RGBController_OpenRazerWindows.h \

0
i2c_smbus/nvapi.cpp → dependencies/NVFC/nvapi.cpp vendored
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0
i2c_smbus/nvapi.h → dependencies/NVFC/nvapi.h vendored
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44
i2c_smbus/i2c_smbus_nvapi.cpp
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@ -7,16 +7,10 @@
\*-----------------------------------------*/
#include "i2c_smbus_nvapi.h"
#include "nvapi.h"
static NV_PHYSICAL_GPU_HANDLE gpu_handles[64];
static NV_S32 gpu_count = 0;
i2c_smbus_nvapi::i2c_smbus_nvapi()
i2c_smbus_nvapi::i2c_smbus_nvapi(NV_PHYSICAL_GPU_HANDLE handle)
{
NV_STATUS initialize = NvAPI_Initialize();
NvAPI_EnumPhysicalGPUs(gpu_handles, &gpu_count);
this->handle = handle;
}
s32 i2c_smbus_nvapi::i2c_smbus_xfer(u8 addr, char read_write, u8 command, int size, i2c_smbus_data* data)
@ -27,61 +21,81 @@ s32 i2c_smbus_nvapi::i2c_smbus_xfer(u8 addr, char read_write, u8 command, int si
uint8_t data_buf[8];
uint8_t chip_addr;
// Set up chip register address to command, one byte in length
chip_addr = command;
i2c_data.i2c_reg_address = &chip_addr;
i2c_data.reg_addr_size = 1;
// Set up data buffer, zero bytes in length
i2c_data.data = data_buf;
i2c_data.size = 0;
// Always use GPU port 1 - this is where RGB controllers are attached
i2c_data.is_ddc_port = 0;
i2c_data.port_id = 1;
i2c_data.is_port_id_set = 1;
// Use default speed
i2c_data.i2c_speed = 0xFFFF;
i2c_data.i2c_speed_khz = NV_I2C_SPEED::NVAPI_I2C_SPEED_DEFAULT;
// Load device address
i2c_data.i2c_dev_address = (addr << 1) | read_write;
switch (size)
{
case I2C_SMBUS_QUICK:
// This is not supported by the driver it seems
i2c_data.reg_addr_size = 0;
i2c_data.size = 0;
break;
case I2C_SMBUS_BYTE:
// One byte of data with no register address
i2c_data.reg_addr_size = 0;
data_buf[0] = command;
i2c_data.size = 1;
break;
case I2C_SMBUS_BYTE_DATA:
// One byte of data with one byte of register address
data_buf[0] = data->byte;
i2c_data.size = 1;
break;
case I2C_SMBUS_WORD_DATA:
// One word of data with one byte of register address
data_buf[0] = (data->word & 0x00ff);
data_buf[1] = (data->word & 0xff00) >> 8;
i2c_data.size = 2;
break;
// Not supported
case I2C_SMBUS_BLOCK_DATA:
chip_addr = command;
i2c_data.size = 0;
return -1;
break;
default:
return -1;
}
// Perform read or write
if(read_write == I2C_SMBUS_WRITE)
{
ret = NvAPI_I2CWriteEx(gpu_handles[0], &i2c_data, &unknown);
ret = NvAPI_I2CWriteEx(handle, &i2c_data, &unknown);
}
else
{
ret = NvAPI_I2CReadEx(gpu_handles[0], &i2c_data, &unknown);
ret = NvAPI_I2CReadEx(handle, &i2c_data, &unknown);
data->byte = i2c_data.data[0];
if(i2c_data.size == 1)
{
data->byte = i2c_data.data[0];
}
else
{
data->word = (i2c_data.data[0] | (i2c_data.data[1] << 8));
}
}
return(ret);

7
i2c_smbus/i2c_smbus_nvapi.h
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@ -8,14 +8,17 @@
\*-----------------------------------------*/
#include "i2c_smbus.h"
#include "nvapi.h"
#pragma once
class i2c_smbus_nvapi : public i2c_smbus_interface
{
public:
i2c_smbus_nvapi();
i2c_smbus_nvapi(NV_PHYSICAL_GPU_HANDLE handle);
private:
s32 i2c_smbus_xfer(u8 addr, char read_write, u8 command, int size, i2c_smbus_data* data);
};
NV_PHYSICAL_GPU_HANDLE handle;
};

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